[ppml] IPv6>>32

Paul Vixie paul at vix.com
Mon May 9 17:17:14 EDT 2005


> I mean core routers, not access routers, not CPEs.

all core routers?  or only some of them?  which ones, made by whom, when?

re:

> > De: Paul Vixie <paul at vix.com>
> > Responder a: <owner-ppml at arin.net>
> > Fecha: Mon, 09 May 2005 18:16:53 +0000
> > Para: <ppml at arin.net>
> > Asunto: Re: [ppml] IPv6>>32
> > 
> > jordi wrote, again in response to leo, as follows:
> > 
> >> We have lots of examples of people don't following RFCs, and I
> >> don't mean I agree with that, but is real life.
> >> 
> >> Keeping 128 bits in the lookup tables of core routers has been seen
> >> by some chip set vendors as not useful, very expensive and time
> >> consuming, while they only handle actually 64 bits routes in that
> >> part of the network.
> > 
> > no doubt.
> > 
> >> Those routers don't expect to see the 64 bits of the host field to
> >> be required for the routing, because they look into the aggregated
> >> route towards the PoP, access network, or whatever is next.
> > 
> > what routers?  you lost me on that last part.  which router/routers,
> > exactly?
> > 
> > paul



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